I just finished the Walther's swing bridge. It is a nice looking kit, it runs very smoothly. there were two modifications that I made. the first was to mount the second switch (the one that they put on the abutment to turn off the motor, under the platform 90 degrees from the other switch. I then wired them directly to the wires for the motor. They don't tell you that the switches are specific for the direction of travel, so I had to reverse the red and black leads from the switches to the motor. The colors were corrected when I wired directly to the motor. But IT WORKS!!!!!!! very smooth, and very quiet. Unlike the rolling bridge which is very noisy and the contacts did not hold up well, so I have to make sure that I turn the motor off.
I made the bridge a 'dual mode' bridge. One side for rail and the other for a single lane road. The bridge leads into the Port of Michelle's Lee, which is a fairly busy port for Lake freighters and car floats. There is also an elevator co-op where LBL lading is handled. There are about a dozen silos that are owned by different companies, but the handling of the product is done by the 'co-operative' management and rolling stock is called in to transport each product to its respective owner.
There will also be a waterfront park on a peninsular that juts into the lake.